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152679 (1998 KU2)
Classification: Apollo [NEO]          SPK-ID: 2152679
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 202 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5528499520137201 2.0571e-08  
a 2.25142602500472 1.6762e-09 au
q 1.00672525511842 4.6405e-08 au
i 4.927520309749235 2.8521e-06 deg
node 205.7325238115878 3.5844e-05 deg
peri 120.2908902832316 3.597e-05 deg
M 213.7179270300403 2.2271e-06 deg
tp 2459701.887560829261
(2022-May-02.38756083)
8.0125e-06 TDB
period 1233.914164831402
3.38
1.378e-06
3.773e-09
d
yr
n .2917544917309456 3.2583e-10 deg/d
Q 3.496126794891019 2.6029e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1320  
   data-arc span      18068 days (49.47 yr)  
   first obs. used      1971-10-21  
   last obs. used      2021-04-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46299  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:28:10  

Additional Information
 Earth MOID = .059409 au 
 Jupiter MOID = 1.915 au 
 T_jup = 3.403 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.58   n/a E2021B55  
diameter diameter 4.167 km 0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
rotation period rot_per 125. h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2016) Minor Planet Bull. 43, 143-154.]
geometric albedo albedo 0.022   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
SMASSII spectral type spec_B Cb   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

152679 (1998 KU2)          Discovered 1998-May-22 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 1998 KU2 = 1971 UB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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